Question

in winter, the pipeline carrying water burst in Cold countries ​

Answer 1

$\underline{\bold{Pressure}}$

Force on per unit area is basically termed as pressure.

$\bold{Unit}$ ===》 Pascal (Pa)

☆ When the temperature falls the pressure on a particular substance increases.

☆ When the temperature Increases the pressure on a particular substance decreases.

When the temperature decreases in cold countries, the pressure is increasing.

And the water flowing through the pipe also freezing so the pressure is high.

When the pressure inside the pipe becomes more than the pressure of pipe and crosses its limit , it bursts.

Answer 2

$\huge\mathfrak\green{Pressure}$

$<b><font color ="red">$Pressure can be defined as the force acting on a surface as per unit area.

➡Pressure is a vector quantity as it's direction is fixed.

➡Its S.I. unit is "Pascal".
$</font>$

Now, let's see why the pipeline carrying water brust in cold ❄ countries.

The actual reason behind is the pressure difference. In winter season, the water inside pipe freezes. As the water freezes, it expands. Due to this, pressure inside pipe increases. Due to the difference between the inner pressure and outer pressure, the pipe ruptures or brust.